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/*
* Copyright (c) 2018-2019, NVIDIA CORPORATION. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef DRM_TEGRA_UDRM_IOCTL_H
#define DRM_TEGRA_UDRM_IOCTL_H
#include <drm/drm.h>
#if defined(__cplusplus)
extern "C" {
#endif
#define DRM_TEGRA_UDRM_DMABUF_MMAP 0x00
#define DRM_TEGRA_UDRM_DMABUF_DESTROY_MAPPINGS 0x01
#define DRM_TEGRA_UDRM_CLOSE_NOTIFY 0x02
#define DRM_TEGRA_UDRM_SEND_VBLANK_EVENT 0x03
#define DRM_TEGRA_UDRM_DROP_MASTER_NOTIFY 0x04
#define DRM_TEGRA_UDRM_SET_MASTER_NOTIFY 0x05
#define DRM_TEGRA_UDRM_SEND_CONNECTOR_STATUS_EVENT 0x06
struct drm_tegra_udrm_dmabuf_mmap {
int fd;
unsigned long offset;
};
struct drm_tegra_udrm_dmabuf_destroy_mappings {
int fd;
};
struct drm_tegra_udrm_close_notify {
int eventfd;
int clear;
};
struct drm_tegra_udrm_send_vblank_event {
struct drm_event_vblank vblank;
};
struct drm_tegra_udrm_drop_master_notify {
int eventfd;
int clear;
};
struct drm_tegra_udrm_set_master_notify {
int eventfd;
int clear;
};
struct drm_tegra_udrm_connector_status_event {
uint32_t conn_id;
uint32_t prop_id;
};
#define TEGRA_UDRM_IOCTL(dir, name, str) \
DRM_##dir(DRM_COMMAND_BASE + DRM_TEGRA_UDRM_##name, \
struct drm_tegra_udrm_##str)
/* In order to facilitate mmap() on the dumb buffer, UMD issues this
* ioctl from handling of DRM_IOCTL_MODE_MAP_DUMB with dmabuf fd
* corresponding to dumb buffer. Driver will return fake offset
* to UMD which can be used by DRM clients in mmap(.., offset).
*
* In parameters -
* fd: dmabuf fd.
*
* Out parameters -
* offset: offset to be used in mmap().
*/
#define DRM_IOCTL_TEGRA_UDRM_DMABUF_MMAP \
TEGRA_UDRM_IOCTL(IOWR, DMABUF_MMAP, dmabuf_mmap)
/* UMD issues this ioctl from handling of DRM_IOCTL_MODE_DESTROY_DUMB
* to destroy dmabuf fd <=> offset mapping created by driver in
* DRM_IOCTL_TEGRA_UDRM_DMABUF_MMAP.
*
* In parameters -
* fd: dmabuf fd.
*/
#define DRM_IOCTL_TEGRA_UDRM_DMABUF_DESTROY_MAPPINGS \
TEGRA_UDRM_IOCTL(IOW, DMABUF_DESTROY_MAPPINGS, \
dmabuf_destroy_mappings)
/* UMD issues this ioctl with eventfd and then does poll() on
* eventfd. Driver signals this eventfd from .preclose method.
*
* In parameters -
* eventfd: fd created using eventfd().
* clear: When set driver will no longer signal the eventfd.
*/
#define DRM_IOCTL_TEGRA_UDRM_CLOSE_NOTIFY \
TEGRA_UDRM_IOCTL(IOW, CLOSE_NOTIFY, close_notify)
/* UMD issues this ioctl with vblank event. Driver injects
* this event into DRM framework so that it get delivered to DRM
* clients waiting on poll/read on drivers fd.
*
* In parameters -
* vblank: drm_event_vblank structure.
*/
#define DRM_IOCTL_TEGRA_UDRM_SEND_VBLANK_EVENT \
TEGRA_UDRM_IOCTL(IOW, SEND_VBLANK_EVENT, send_vblank_event)
/* UMD issues this ioctl with eventfd and then does poll() on
* eventfd. Driver signals this eventfd from .master_drop method.
*
* In parameters -
* eventfd: fd created using eventfd().
* clear: When set driver will no longer signal the eventfd.
*/
#define DRM_IOCTL_TEGRA_UDRM_DROP_MASTER_NOTIFY \
TEGRA_UDRM_IOCTL(IOW, DROP_MASTER_NOTIFY, drop_master_notify)
#define DRM_IOCTL_TEGRA_UDRM_SET_MASTER_NOTIFY \
TEGRA_UDRM_IOCTL(IOW, SET_MASTER_NOTIFY, set_master_notify)
/* UMD issues this ioctl to generate a uevent for connector status
* property change.
*
* In parameters -
* conn_id: connector id related to the status change.
* prop_id: property id related to the status change.
*/
#define DRM_IOCTL_TEGRA_UDRM_SEND_CONNECTOR_STATUS_EVENT \
TEGRA_UDRM_IOCTL(IOW, SEND_CONNECTOR_STATUS_EVENT, \
connector_status_event)
#if defined(__cplusplus)
}
#endif
#endif
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